Stop device for winding-machines.



S. W. WARDWELI..

STOP DEVICE FOR WINDING MACHINES.

APPLICATION FILED NOV.4, 1913.

Patented Aug. 24, 1915.

3 SHEETS-SHEET I.

lNx/ENTo COLUMBIA PLANGGRAPM co.,wAsHxNa'roN, n. c.

S. W. WARDWELL.

STOP DEVICE FOR WINDING MACHINESl APPLICATION FILED NOV. 4. 1913- Patented Aug. 24, 1915.

3 SHEETS-SHEET 2.

WITNESSES ma @f7 COLUMBIA PLANOGRAPH C0..\VASH|NOTON. D. C

S. W. WARDWELI..

STOP DEVICE FOR WINDING MACHINES.

APPLICATION FILED NOV. 4, 1913- Patented Aug. 24, 1915.

3 SHEETS-SHEET 3.

INVENTOR ,Za/w36 LIM la@ BY f COLUMBIA PLANOGRAPH n.wAsmNaToN. D. C.

'UNIT SIMON W. WARDWELL, OF PROVIDENCE, RHODE ISLAND.

STOP DEVICE FOR WINDING-MACI-IINES.

Application filed November 4, `1913.

To all whom t may concern Be it known that I, SIMON W. lVARDwnLL, a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented new and useful Improvements in Stop Devices for finding-Machines.

My invention is an improvedstop device for a winding machine, particularly for machines in which the winding spindle is positively driven.

The purpose of my invention is to provide a sensitive device which shall act promptly, with instant effect; and a device which shall act automatically upon failure or relaxation of tension on the supply yarn, with provision for momentarily withholding the stop yfrom action when the winding is started, until the yarn is under tension. l

Referring to the accompanying drawings formingl a part of the specification :-Figure 1 is an elevation, partly in section on the line `a--a of Fig. 2, and looking in the direction of the arrow Z) in Fig. 2. Fig. 2 is a plan view, sectional of Fig. 1 on Vthe line c-c. Fig. 3 is a detail of the member 34. Fig. 4 is a detail of the tension device. Fig. 5 is a plan view corresponding to that of Fig. 2, but with the top of the swinging frame removed.

In Fig. 1 the winding spindle 2 is shown, mountedin xed vertical bearings 3 and 4 of the bracket 5 which is secured to the main frame G ofthe winding machine by suitable means as by the screw 7. The package wound is represented by 9 in broken lines and against the package is shown the guide 10, which is carried in the arm 11, which is reciprocated by any adequate means.

rI`he spindle 2 is driven by the driving ,gear 12 (Fig. 2) which meshes with the driven gear 13. The driven gear 13 is vmounted to turn freely on the spindle 2 and the inside of its rim is of clutch formation ,-preferably an internal taper of suitable degree. 'The driven gear 13 is restrained longitudinally of the spindle 2, by the collar 15 (secured to thevspindle by the set screw 17) vandfby the collar 18 which is secured to the spindle 2 by the pin 19 and which has a iiange 20.

Mounted on the hub 21 of the collar 18, is the clutch 22, having an external clutch formation 23 which fits, and coperates with, the internal clutch formation 14 of the driven gear 13. rlhe clutch 22 is prevented Specification of Letters Patent.

Patented Aug. 24, 1915.

Serial No. 799,227.

from turning with respect to the spindle 2 kby the pin 19 which extends into slots 24-25 in the hub of the clutch 22. r1`he slots 24.-25 permit the clutch 22 that extent of movement necessary for its engagement with and disengagement from the driven gear 13, and the clutch is held to such engagement by the spring 26 which is under compression between the flange 20 of the collar 18 and the web 27 of the clutch 22.

The clutch 22 is disengaged from the driven gear 13 by the brake 28 which has aninternal taper 29 conformed and opposed to a corresponding external taper 30 on the clutch 22. The brake is prevented from turning by projections 31 and 32 which straddle the body of the bracket 5 in which the spindle 2 is mounted. (Fig. 2.) The brake 28 is controlled, and normally maintained away from the clutch 22 by the yoke 33 which is formed in an arm of the member 34 which is carried on the rod 35. The rod Y35 is carried on a swinging frame 3G, which in turn swings by hinge pins 37 and 38 on the stand 39.

A projection 40 from the stand 39 is formed with a step 41 (further shown in Fig. 3) which is opposedto a downward projection 42 from the member 34. During the normal operation of the machine, the projection 42 is mounted on the step 41, thus upholding the brake 28 and maintaining it away from the clutch 22.

By swinging the frame 33 in the direction of the arrow l (Fig. 2) the projection 42 is removed from the step 41, and the member 34 is permitted to drop, forced by the spring 43 as well as by gravity acting upon the suspended parts. The spring 43 is under compression between a cam 44 through which the rod 35 passes, and the top of the member 34, which member is secured to the rod 35 by the collar 45 which in turn is held by a set screw 46. A stop 47 on the downward projection 42 (Fig. 3) encounters the step 41 and limits the downward movement of the brake 28. The frame 3G is normally held toward the spindle 2 by a spring 48, acting in the opposite direction to that of the arrow cZ-Fig. 2.

The brake, in descending, encounters the clutch 22 by its brake surface 30 and withdraws the clutch from the driven gear 13, as described in my pending patent No. 1,097,691, May 2e, i914.

The frame 36 is automatically swung in the direction of the arrow d, by the rotating member 49 acting through the dog 50, which dog is mounted on the frame 36 by the pin 51 on which it swings. The tail of the dog extends upward at 52, and then horizontally past the opening 53 in the frame 36, through which the rod 35 extends. The portion 54 of' the tail which passes the opening 53 is curved, and when the dog 50 is in contact with the rotating member 49 the curve is eccentric with the rod 35. Attached to the rod 35 is a finger 55 which extends outward over the curved tail, down in front of it at 56 and sufficiently close to it so that, when the dog 50 is in contact with the member 49, the curved tail intercepts the down turned part 56 of the finger 55 as the latter turns with the rod 35, and is thereby moved and withdraws the dog 50 from the member 49. The rod 35 is manually turned from its normal position by the handle 57 which is held in its normal position, against the bracket 39, by the spring 58 which is anchored to a fastening 59 in the frame 36 and extends to a projection 60 on the rod 35.

As explained on p. 2, lines 25 to 28, the spindle 2 is stopped b y swinging the frame 36 in the direction of the arrow d-Fig. 2, which removes the foot 42-Fig. 3, from the step 41, dropping the foot in front of the step and permitting the brake 28 to encounterl the clutch 27 and disengage it from the gear 13. rllhe foot 42 also falls in front-of the face 61 of the step and restrains the frame 36 from returning to its normal position.

The spindle 2 is started by turning the handle 57 so that the finger 55 moves in the direction of the arrow f, which raises the rod 35-through instrumentalities abo-ut to be described-and with it the member 34, diseiigaging the toot 42 from the step 41, permitting the swinging frame 36, to return to its normal operative position, and withdrawing the brake 28 from its restraining engagement with the clutch 22, permitting the latter to operatively engage the wheel 13. By turning the handle 57 as described, the finger 55 is engaged with the dog tail 54, moving the dog` 50 away from the rotating member 49 and holding it away vuntil the handle 57 is returned to its normal position, which return is automatically accomplished by the spring 58 as described. The instant the winding is started, the thread 61, under tension, withholds the dog 50 from coi-acting with the rotating member to stop the winding spindle 2.

The raising of the rod 35, is caused by the projection 62 which engages a raiser cam 63, which in turn is secured to the swinging iframe 36 by any convenient device such as the screws 64-64. As the handleV 57 is turned in the direction of the arrow f, the

projection 62 rides up the cam 63, carrying the rod and its connected parts. Vhen the foot 42 is raised above the step 41, the swinging t'iaine 36 is free to return to its normal operative position which return is automatically accomplished by the spring 43 secured to the main 'frame of the machine and bearing against the swinging frame 36. rl"he inovementof the swinging frame 36 is so slight, that the engagement of the member 34 with the brake 28 is not deranged.

The tension device may be of any usual form such as is used with winding machines,

interposed between the supply and the winding spindle and guide. The form used for illustration, shown on Fig. 2 comprises two co-acting disks 6767 between which the thread passes. From the disks 67--67 the thread 61 passes under an end stop bar 68 which is mounted on a rod 69 which rod also carries a counterweighted bell crank lever 70. having a substantially horizontal arm 71 and a substantially vertical arm 72. The vertical arm 72 is connected with the tail of the dog 50 by the link or connecting rod 73. |The horizontal arm 71 of the bell crank is preferably slotted or bifurcated,

straddling a bail 74 which is also mounted on the rod 69 and which also passes beneath the arm 75 of the end stop bar 68. The proportion of the counterweight of the bell lcrank lever to the bail 74 is such as to overbalance the latter, so that when the said bail 74 is unrestrained the tendency of the counterweighted bell crank lever is to swing the dog 50 away from and out of engagement with the rotating member 49. The effect of the end stop bar 68, when released by a broken or slack end, and permitted to fall upon the bail 74 is to offset and overcome the tendency of the counterbalanced bell crank lever 76, and swing the vdog 56, into engagement with the member y49, causing the action ol the rotating meintrol tlie position and action of the brakey 28,

and further, on p. 3, lines 26 to 32 as a detent to restrain the swinging frame 36 from returning to its normal operating position. The face 65, immediately below the step 47 is slightly inclined or otherwise sol shaped that as the member 34 descends under action of the spring 43,'the said f'ace 65,

acts with cam or wedge action to move the frame 36 still further than it 'has been moved bythe dog 50. The dog l50 is therefore then free to resume its normal position under influence of the counter-weighted bellcrank lever A70. It is to be observed that the swinging frame is subject to the action of two distinct instrumentalities, the dog 50 and the cam face of the member 34, which portion of said member is termedthe auxiliary knock-ofi' cam.

Vithout limiting myself to the precise form and arrangement of parts I claim:-

l. In a stopping device, the combination with a spindle mounted in fixed bearings, a clutch to effect the going of the spindle, and a brake `to disconnect and stop the clutch, both brake and clutch being co-axial with the spindle, and having a joint movement longitudinally of thespindlc. of a frame swingablc about an axis that is parallel with 'the spindle, means to control the position of the brake and clutch through change in position ofthe frame, and means tochange position of the frame.

2. In a stopping` device, the combination with a spindle mounted-in fixed bearings, a driving wheel, a clutch to operatively connect the driving wheel and spindle, and a brake mounted on and movable longitudinally of the spindle to encounter and disconnect the clutch from the wheel and, acting in the direction of' said movement to press upon the clutch to stop it and the spindle, of a frame swingable about an axis substantially parallel with the axis of the spindle, a yoke mounted on the frame to control the brake and actuated by movement of said frame and means to move the frame.

3. In a stopping device, the combination with a spindle mounted in fixed bearings, means to drive the spindle, and a brake to stop the spindle, of a swinging frame whose hinge axis substantially parallels the spindle axis, a member mounted on the frame having a yoke to engage the brake and a foot, a step adjacent the swinging frame and adapted in one position of the swinging frame to support the foot, withholding the brake from action, and means to shift the frame to remove said foot from the step to permit the brake to act.

4. In a stopping device, the combination with a spindle mounted in fixed bearings, a swinging frame adjacent the spindle and a rotating member 49, of a brake mounted concentric with the spindle, a brake controlling member mounted movably on the frame and occupying different positions on the frame with different positions of the frame, a dog to engage the rotating member 49, said dog being mounted on the frame and having a tail, a rod 35, having a handle portion 57, and a finger 56 on the rod, moving with the rod when the latter is turned, to engage the dog by itsitail and to withhold the dog from engaging therotating member 49.

:5. In a stopping device, the combination with a spindle mounted in `fixed bearings, and starting andstopping deviccsconnected therewith, of a swinging zframe, starting and stopping control devices carried bythe frame and actuated through change-in posi- .tion of the frame, a member moving near clutch, disconnect it from lthe wheelwand stop it, and a fixed bracket to support the` spindle, of a frame movable `to alternative positions, a rod longitudinally movable on the frame, and controlled by the position of the frame, a member 34 secured-to thefrod and engaging thebrake to control its action,A

and by which the movement of the `frame is .controlled,.means acting on lthe rod tending ytoengage the brake .with-the clutch and :to

lock the frame from movement, a projection 62 enf'the rod, and a cam which,*b'y coacting with said projection, causes movement of the rod and consequent movement of the frame and brake.

7. In a stopping device, the combination with a positively driven spindle, fixed bearings therefor and a brake to stop the spindle, of a swinging frame, brake actuating devices carried by the frame and controlled by the frames position, a moving member 49 capable of acting on the frame to move it, a dog 50 carried by the frame, means to interpose the dog between the moving member 49 and the frame, but normally withheld from such action by a taut thread, and means to tensionize the thread.

S. In a stopping device, the combination with a positively driven spindle, fixed bearings therefor and a brake to stop the spindle, of a member 34 to control the brake, a swinging frame on which the member 34 is carried and by the movement of which the action of the brake controlling member is determined, a continuously moving member 49 adjacent the frame, and a dog carried by the frame to engage the continuously moving member and cause movement of the frame, and means acted upon by a running thread to prevent the engagement of the dog with the continuously moving member.

9. In a stopping device, the combination with a positively driven spindle, Xed bearings therefor, and a brake to stop the spindle, of a member 34 to control the brake, a swinging frame on which the member 34 is carried and by movement of which the action of the brake Controlling :member is determined, a continuously moving member 49 adjacent the frame,v and a dog carried by the frame to engage the continuously moving member and cause movement of the frame,

rmeans acted upon by a. running thread to prevent engagement of the dog with the eontinuouslyunoving member, and manual means` carried bythe frame foi' preventing such kengagement when the dog isznot controlled by the running thread.

vthe auxiliary knock-off to act when said brake isy actuated. i

- l1. 'In a Stopping device, the combination l'with a positively driven spindle, .a fixed bracket to support the spindle, a clutch by which the spindle is driven and a brake to `engage and move the clutch, and by the same said engagement to stop the clutch and spindle7 the said brake being movable longitudinally of the spindle and prevented from rotation by engagement with the fixed bracket aforesaid, of a swinging frame,

brake actuating devices carried by the vframe and controlled by the fraines position, and

means to move the frame to actuate the brake. y

12. in a stopping device, the combination with a positively driven spindle, a fixed bracket to support the spindle, a clutch by vwhich the spindle is driven and a brake to engage said clutch, the brake having movement Alongitudinally of the spindle and being restrained froml rotation by engagement of the fixed bracket with two lugs which straddle said bracket, of a swinging frame,

`brake actuating devices carried by the frame and controlled by the fiaines position, and means to Change the frames position to ac- 1 tuate the brake.

In testimony whereof I afiix my'signature in presence of two witnesses.

SIMON XV. VARDVELL.

/Vitnesses :l

Alivio F. Pnxnsoiv, VERA M. HALvoRsoN.

Copies of this patentmay be obtained for ve cents each, by addressing the Commissionerv of Patents.

i Washington, D. G. 

